From f38bb8e55d1df64f8fb85d7dc58eb2902198ed97 Mon Sep 17 00:00:00 2001
From: Michael Pavone <pavone@retrodev.com>
Date: Tue, 28 Feb 2017 21:59:58 -0800
Subject: immediate and predecrement are illegal source address modes for
 movem. Fixes ticket:8 and ticket:9

---
 68kinst.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to '68kinst.c')

diff --git a/68kinst.c b/68kinst.c
index e406872..a753765 100644
--- a/68kinst.c
+++ b/68kinst.c
@@ -692,7 +692,7 @@ uint16_t * m68k_decode(uint16_t * istream, m68kinst * decoded, uint32_t address)
 						decoded->dst.addr_mode = MODE_REG;
 						decoded->dst.params.immed = *(++istream);
 						istream = m68k_decode_op_ex(istream, opmode, reg, decoded->extra.size, &(decoded->src));
-						if (!istream) {
+						if (!istream || decoded->src.addr_mode == MODE_AREG_PREDEC || decoded->src.addr_mode == MODE_IMMEDIATE) {
 							decoded->op = M68K_INVALID;
 							break;
 						}
-- 
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